Sectagon 42 is a water-soluble liquid. When applied to properly prepared soil, the liquid is converted into a gaseous fumigant. After a sufficient waiting period, the gas dissipates, leaving the soil ready for planting. Sectagon 42 is recommended for the suppression of weeds, plant parasitic nematodes, and soilborne fungi that cause reductions in the yield and quality of ornamental, food and fiber crops.

Sectagon 42 will suppress only those pests in the fumigation zone at the time of treatment. Recontamination may occur subsequent to the fumigant's dissipation from the soil.

Note: Sectagon 42 will only suppress nematodes that are in the fumigated zone at the time of treatment. The fumigated zone is defined as the depth of penetration that Sectagon 42 achieves at the time of application. In Oregon and Washington, Sectagon 42 will only suppress Miloidogyne Chitwoodi. Other pests suppressed include symphilids or garden centipedes.

ENTRY-RESTRICTED PERIOD

Entry (including early entry that would otherwise be permitted under the Worker Protection Standard) by any person -other than a correctly trained and PPE-equipped handler who is performing a handling task listed on the labeling -is PROHIBITED from the start of the application until:

- 5 days (120 hours) after the application is complete for untarped applications, or

- 5 days (120 hours) after application is complete if tarps are not perforated and removed for at least 14 days following application (Note: persons installing, repairing, or monitoring tarps are handlers until 14 days after the application is complete if tarps are not perforated and removed during those 14 days), or

- 48 hours after tarps perforation is complete if they will not be removed for at least 14 days following application, or

- Tarp removal is completed if tarps are both perforated and removed less than 14 days after application.

NOTE: see Tarp Perforation and/or Removal section on the labeling for requirements about when tarps are allowed to be perforated.

APPLYING SECTAGON 42

Use of Diluted Sectagon 42

Do not store the diluted product. Use Sectagon 42promptly after it has been mixed with water. In dilute solutions in water Sectagon 42 decomposes over a period of days. Although Sectagon 42 is stable in its concentrated form, it is unstable in acid dilutions.

GENERAL INSTRUCTIONS FOR SPRINKLER SYSTEMS

NOTICE: Do not operate irrigation systems without safety valves or other devices to prevent back siphoning of Sectagon 42 into water sources. Irrigation water treated with Sectagon 42 should be maintained on the treated area until the water is absorbed by the soil. The tank containing Sectagon 42 must be connected to the discharge side of the irrigation pump or other pressurized equipment attached to the irrigation line. Do not apply in irrigation systems that result in overlapping application of Sectagon 42. Do not apply when weather conditions favor drift from target areas.

PREPARING FOR PLANTING AFTER APPLICATION OF SECTAGON 42

Effect of Rain

If a Sectagon 42 application is rained on less than 24 hours after treatment, lack of suppression at and near the soil surface may result.

Recontamination

Precautions must be taken to prevent recontamination of treated soil with weed plant pathogenic fungi and plant parasitic nematodes. Use clean seeds and/or plants. Before farm equipment is driven into the treated area, it should be rinsed free of the untreated soil from other fields.

Interval Between Treatment and Planting

Because Sectagon 42 can be harmful to germinating and/or living plants, an appropriate interval must be observed between soil fumigation and planting. On well-drained soils which have a light to medium texture and which are not excessively wet or cold following application, planting can begin 14 to 21 days after treatment. If soils are heavy or especially high in organic matter, or if they remain wet and or cold (below 60c F or 15c'C) following application, a minimum interval of 30 days should be observed.

Aeration before planting

Soils including soils high in clay or organic matter, should be allowed to aerate and dry thoroughly after treatment with Sectagon 42 During cold and/or wet weather, frequent shallow cultivation can aid the escape of Sectagon 42 from the soil.

Testing for Dissipation of Sectagon 42

After the waiting period has passed, if there are any questions about the complete escape of Sectagon 42 from the soil, transplant a seedling into the treated soil. If the plant develops normally without any signs of chemical injury, crop planting can begin.

When to treat: Apply Sectagon 42 2 to 6 weeks prior to planting whenever soil type and conditions permit. For best results with annual crops, treat the soil each year. Do not use Sectagon 42 to treat any type of soil when it is cold and/or wet (when soil is colder than 40°F or contains more moisture than 80% field capacity).

Application: Use undiluted Sectagon 42 Apply with suitable application equipment that will ensure incorporation of Sectagon 42 to the desired depth below the final soil surface. (Contact your dealer or the manufacturer for tile specifications for suitable application equipment).

IMPORTANT SOIL TREATMENT PRECAUTIONS

Crops to be hilled: For crops that require soil movement (hilling) prior to or after planting, incorporate Sectagon 42 to a depth that will allow the tillage required to occur without penetrating below the depth of treatment (see application specific requirements in the Good Agricultural Practices section of the label).

Crops to be bedded: For crops to be bedded, care must be taken that exposed sides of raised beds are not cracked or open compared to the power roiled surface. If necessary, add power rollers of the required height or other sealing equipment to the ends of the bedding equipment to seal the sides.

Note: The use of Sectagon 42 for the suppression of weeds, weed seeds and shallow inhabiting soil fungi requires that NO SOIL CULTIVATION OCCUR FOLLOWING TREATMENT until time of planting.

This method of treating soil with Sectagon 42 will not be effective for the suppression of nematodes outside the treated zone. This method of Sectagon 42application can be used in combination with other soil fumigants to suppress the nematodes persisting in the surface 1 to 6 inches of soil normally not suppressed with injected soil fumigants.

Zone of treatment will be limited by diameter of applicator. If pest is deeper than applicator can treat to, use a different method. For further information contact your local agricultural extension service or the manufacturer.

SOIL COVERING METHOD (BED-OVER METHOD)

Sectagon 42 may be sprayed or dripped onto the soil immediately ahead of bed-shaping equipment. Follow immediately with a bedshaper, roller press wheel, or similar device, or cover with an adequate amount of soil to seal the fumigant into tile soil. The recommended rate of Sectagon 42 is 40 to 75 gallons per acre of treated soil, approximately equivalent to 0.5 to 1.5 pints per 100 linearft. of 12-inch wide row.

Chemical Protection

Advanced Search

About Us

For more than 35 years Greenbook® has been the trusted, go-to crop and turf chemical reference guide for farmers, ranchers, agronomists, retailers and crop advisers alike. Greenbook collects, maintains, and disseminates the most useful plant protection chemical dataset available to create a reliable resource for weed management strategies. Working in direct cooperation with Pesticide, Fertilizer, Turf and Ornamental, and Seed Treatment companies Greenbook transforms product labeling into indexed, actionable data in an unbiased presentation, that is easily accessible.

Menu

The material and content contained in the Greenbook Label Database is for general use information only. Farm Journal and Greenbook Data Solutions does not provide any guarantee or assurance that the information obtained through this service is accurate, current or correct, and is therefore not liable for any loss resulting, directly or indirectly, from reliance upon this service. This Label Database does not replace the official manufacture issued label. Users of this database must read and follow the actual product label affixed to the container before use of the product.